Elastic-fluid turbine.



S. A. MOSS.

ELASTIC FLUID TURBINE.

APPLICATION FILED APR.3.1914.

1 9 1 3 1 7 Patented Mar 2, 1915.

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represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is only illustrative and that the invention can becarried out by other means.

What I claim as new and desire to secure by Letters Patent of the United States, is

1. The combination with a turbine having a conduit leading from a region of intermediate pressure, and a condenser into which the turbine exhausts, of a valvecontrolling a passage leading from a. region of lower pressure. and means for automatically opening said valve when the turbine changes from condensing to non-condensing operation so as to insure a circulation of fluid through the final stages of the machine at all times.

2. The combination with a turbine having a conduit leading from an intermediatestage and a condenser into which the final stage exhausts, of a vent pipe connected with the final stage of the turblne a normally closed valve 1n said pipe, andmeans for closed position,

condenser vacuum is lost and restoring it when the vacuum is regained so as to insure a circulation of the fluid through the final stages of the machine at all times.

3. The combination of a turbine having a plurality of stages, a conduit leading from an intermediate stage, a stage valve controlling. the passage of steam from such stage to the next lower, a stop for limiting the movement of the stage valve toward a condenser into which the turbine exhausts, and an automatic relief valve connected with the final stage of, the turbine and adapted to open when the turbine changes from condensing to non-condensing operation.

In witness whereof, I have hereunto set my hand this 31st day of March, 1914.

SANFORD A. MOSS.

\Vitnesses:

JOHN A. McMANUs, Jrx, JOHN J. MOKENN Y. 

